Patent
Secure cryptographic operations using control vectors generated inside a cryptographic facility
Donald B. Johnson,An V. Le,Stephen M. Matyas,Rostislaw Prymak,John D. Wilkins +4 more
- 10 Aug 1993
98
TL;DR: In this paper, the authors suggest methods of cryptographic key management based on control vectors in which the control vectors are generated or derived internal to a cryptographic facility implementing a set of cryptographic operations, and they provide a highintegrity facility to ensure that cryptographic keys are used in a manner consistent with the type and usage attributes assigned to the keys by the originator of those keys.
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Abstract: The invention described herein suggests methods of cryptographic key management based on control vectors in which the control vectors are generated or derived internal to a cryptographic facility implementing a set of cryptographic operations. The methods of alternate control vector enforcement described in the present application provide a high-integrity facility to ensure that cryptographic keys are used in a manner consistent with the type and usage attributes assigned to the keys by the originator of those keys. Since the control vectors are generated or derived internal to the cryptographic facility on the basis of data contained in each cryptographic service request to the cryptographic facility, control vectors need not be stored or managed outside the cryptographic facility.
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Citations
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References
Patent
Controlling the use of cryptographic keys via generating station established control values
Stephen M. Matyas,Carl H. W. Meyer,Bruno Brachtl +2 more
- 11 May 1988
TL;DR: In this paper, a method for controlling the use of a cryptographic key at a using station by a generating station in a network of generating and using stations is disclosed, where the key and control value are authenticated via a special authentication code before use by the using station and coupled during key generation such that the key is recovered only if a correct control value is specified.
121
Patent
Secure management of keys using control vectors
Stephen M. Matyas,Dennis G. Abraham,Donald B. Johnson,Ramesh K. Karne,An V. Le,Rostislaw Prymak,Julian Thomas,John D. Wilkins,Phil C. Yeh +8 more
- 15 Jun 1989
TL;DR: In this paper, an apparatus and method for validating that key management functions requested for a cryptographic key by the program have been authorized by the originator of the key is presented.
104
Patent
Data cryptography operations using control vectors
Stephen M. Matyas,Dennis G. Abraham,Donald B. Johnson,Ramesh K. Karne,An V. Le,Rostislaw Prymak,Julian Thomas,John D. Wilkins,Phil C. Yeh +8 more
- 30 Aug 1989
TL;DR: In this paper, the authors propose a control vector which provides the authorization for the uses of the data cryptography key intended by the originator of the key, among the uses specified by the control vector are limitations on encryption, decryption, authentication code generation and verification, translation of the user's data.
86
Patent
Secure management of keys using extended control vectors
Stephen M. Matyas,Dennis G. Abraham,William C. Arnold,Donald B. Johnson,Ramesh K. Karne,An V. Le,Rostislaw Prymak,Steve Richard White,John D. Wilkins +8 more
- 24 Aug 1989
TL;DR: In this article, a method and apparatus for use in a data processing system which executes a program which outputs cryptographic service requests for operations with cryptographic keys which are associated with control vectors defining the functions which each key is allowed by its originator.
59
Patent
Personal identification number processing using control vectors
Stephen M. Matyas,Dennis G. Abraham,Donald B. Johnson,Ramesh K. Karne,An V. Le,Rostislaw Prymak,Julian Thomas,John D. Wilkins,Phil C. Yeh,Ronald M. Smith +9 more
- 09 Aug 1989
TL;DR: In this article, a PIN encryption key is associated with a control vector that restricts the authority of PIN processing instructions, such as PIN generation, verification, translation and PIN block creation.
46
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